Scilab Function
Last update : August 2003

merror - tests the file access errors indicator

### Calling Sequence

  `merror([fd])`

### Parameters

- `fd`: scalar. The `fd` parameter returned by the function `mopen`. -1 stands for last opened file. Default value is -1.

### Description

The function `merror` is used to tests the file access errors indicator. returning non-zero if it is set. The error indicator can only be reset by the `mclearerr` function.

### See Also

`mclearerr`, `mclose`, `mopen`, `mput`, `mget`, `mgetstr`, `mputstr`, `meof`, `mseek`, `mtell`,